Electric conductivity and band gap of solid C60 under high pressure

Yahachi Saito; Hisanori Shinohara; Manabu Kato; Hideo Nagashima; Masato Ohkohchi; Yoshinori Ando

doi:10.1016/0009-2614(92)85131-S

Electric conductivity and band gap of solid C₆₀ under high pressure

Yahachi Saito, Hisanori Shinohara, Manabu Kato, Hideo Nagashima, Masato Ohkohchi, Yoshinori Ando

Department of Applied Molecular Chemistry

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

Measurement of the electric resistivity of compressed C₆₀ powder up to 22 GPa at ambient temperature has revealed that the electric conductivity changes four orders of magnitude from 2 × 10^-6 Ω^-1 cm^-1 (below 8 GPa) to 3 × 10^-2 Ω^-1 cm^-1 (around 20 GPa). From the temperature dependence (ambient temperature to 400°C) of the conductivity, which behaves like a semiconductor, the band gap is derived as follows: 1.6 ± 0.1 eV at 3 and 6 GPa, and 1.2 ± 0.1 eV at 10 GPa.

Original language	English
Pages (from-to)	236-240
Number of pages	5
Journal	Chemical Physics Letters
Volume	189
Issue number	3
DOIs	https://doi.org/10.1016/0009-2614(92)85131-S
Publication status	Published - Feb 7 1992

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/0009-2614(92)85131-S

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title = "Electric conductivity and band gap of solid C60 under high pressure",

abstract = "Measurement of the electric resistivity of compressed C60 powder up to 22 GPa at ambient temperature has revealed that the electric conductivity changes four orders of magnitude from 2 × 10-6 Ω-1 cm-1 (below 8 GPa) to 3 × 10-2 Ω-1 cm-1 (around 20 GPa). From the temperature dependence (ambient temperature to 400°C) of the conductivity, which behaves like a semiconductor, the band gap is derived as follows: 1.6 ± 0.1 eV at 3 and 6 GPa, and 1.2 ± 0.1 eV at 10 GPa.",

author = "Yahachi Saito and Hisanori Shinohara and Manabu Kato and Hideo Nagashima and Masato Ohkohchi and Yoshinori Ando",

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AU - Saito, Yahachi

AU - Shinohara, Hisanori

AU - Kato, Manabu

AU - Nagashima, Hideo

AU - Ohkohchi, Masato

AU - Ando, Yoshinori

PY - 1992/2/7

Y1 - 1992/2/7

N2 - Measurement of the electric resistivity of compressed C60 powder up to 22 GPa at ambient temperature has revealed that the electric conductivity changes four orders of magnitude from 2 × 10-6 Ω-1 cm-1 (below 8 GPa) to 3 × 10-2 Ω-1 cm-1 (around 20 GPa). From the temperature dependence (ambient temperature to 400°C) of the conductivity, which behaves like a semiconductor, the band gap is derived as follows: 1.6 ± 0.1 eV at 3 and 6 GPa, and 1.2 ± 0.1 eV at 10 GPa.

AB - Measurement of the electric resistivity of compressed C60 powder up to 22 GPa at ambient temperature has revealed that the electric conductivity changes four orders of magnitude from 2 × 10-6 Ω-1 cm-1 (below 8 GPa) to 3 × 10-2 Ω-1 cm-1 (around 20 GPa). From the temperature dependence (ambient temperature to 400°C) of the conductivity, which behaves like a semiconductor, the band gap is derived as follows: 1.6 ± 0.1 eV at 3 and 6 GPa, and 1.2 ± 0.1 eV at 10 GPa.

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